diff options
Diffstat (limited to 'src/corelib/global/qprocessordetection.h')
| -rw-r--r-- | src/corelib/global/qprocessordetection.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h index 623e30aa06..a5eff7c7ce 100644 --- a/src/corelib/global/qprocessordetection.h +++ b/src/corelib/global/qprocessordetection.h @@ -196,6 +196,7 @@ # define Q_PROCESSOR_X86 6 # define Q_PROCESSOR_X86_64 # define Q_BYTE_ORDER Q_LITTLE_ENDIAN +# define Q_PROCESSOR_WORDSIZE 8 /* Itanium (IA-64) family, no revisions or variants @@ -204,6 +205,7 @@ */ #elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64) # define Q_PROCESSOR_IA64 +# define Q_PROCESSOR_WORDSIZE 8 // Q_BYTE_ORDER not defined, use endianness auto-detection /* @@ -324,4 +326,23 @@ # endif #endif +/* + Define Q_PROCESSOR_WORDSIZE to be the size of the machine's word (usually, + the size of the register). On some architectures where a pointer could be + smaller than the register, the macro is defined above. + + Try our best to define it to a literal, so it can be used in the preprocessor, + but fall back to sizeof(void*) on practically every 32-bit build. +*/ +#ifndef Q_PROCESSOR_WORDSIZE +# ifdef __SIZEOF_POINTER__ + /* GCC & friends define this */ +# define Q_PROCESSOR_WORDSIZE __SIZEOF_POINTER__ +# elif defined(_LP64) || defined(__LP64__) || defined(WIN64) || defined(_WIN64) +# define Q_PROCESSOR_WORDSIZE 8 +# else +# define Q_PROCESSOR_WORDSIZE sizeof(void*) +# endif +#endif + #endif // QPROCESSORDETECTION_H |